SimpleSAML_Utilities::generateTimestamp PHP Method

    public static function generateTimestamp($instant = null)
    {
        return SimpleSAML\Utils\Time::generateTimestamp($instant);
    }

 /**
  * Build the request we will send to the IdP.
  *
  * @param array $artifacts  The artifacts we will request.
  * @return string  The request, as an XML string.
  */
 private static function buildRequest(array $artifacts)
 {
     $msg = '<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">' . '<SOAP-ENV:Body>' . '<samlp:Request xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol"' . ' RequestID="' . SimpleSAML_Utilities::generateID() . '"' . ' MajorVersion="1" MinorVersion="1"' . ' IssueInstant="' . SimpleSAML_Utilities::generateTimestamp() . '"' . '>';
     foreach ($artifacts as $a) {
         $msg .= '<samlp:AssertionArtifact>' . htmlspecialchars($a) . '</samlp:AssertionArtifact>';
     }
     $msg .= '</samlp:Request>' . '</SOAP-ENV:Body>' . '</SOAP-ENV:Envelope>';
     return $msg;
 }